Min. [f. the surname Edington (see quot. 1825) + -ITE.] A greyish white translucent mineral, consisting chiefly of the silicates of alumina, baryta, etc.
1825. Haidinger, in Edin. Jrnl. Sci., III. 317. It is in compliment to that gentleman [Mr. Edington, in whose colleclion Haidinger first saw the mineral] that the name of Edingtonite is here proposed.
1868. Dana, Min., 417. Edingtonite occurs in the Kilpatrick Hills, near Glasgow, Scotland, associated with harmotome, another baryta mineral.